LIGNex1 Co Ltd.

Giheung gu, South Korea

LIGNex1 Co Ltd.

Giheung gu, South Korea
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Patent
LIG Nex1 CO | Date: 2011-12-07

The present invention relates to an umbilical connecting device (12,13,16,21,22,24) that is automatically separated from a missile (20) without being damaged when the missile (20) is launched, keeps the separated state for reuse, and precludes a secondary collision with the missile (20).The umbilical connection device includes: a missile navel (21) that is hinged to a side of a missile (20) and pressed outside the missile by a first pressing member (22); and a launch pad navel (16) that is hinged to a side of a launch pad (11), pressed against the missile navel (21) by a second pressing member (13), and electrically connected with the missile navel (21) that slides when the missile (20) is mounted and disconnected from the missile navel (21) that slides when the missile (20) is launched.


Provided are a multi-hop communication method for an OFDMA/TDD system and a transmission method of a terminal in which a terminal transmission frame is made including a plurality of relay links and a plurality of data transmission links, the method including: (a) receiving data from other terminals through any one of the relay links and storing data in a buffer when the relay link generates data to be transmitted to a base station; and (b) selectively transmitting the stored data to the base station through any one of the data transmission links according to the number of hops to the base station or transmitting the stored data to other terminals through other relay links among the relay links.


Patent
LIG Nex1 Co. | Date: 2010-12-22

Provided are an apparatus and a method for processing data in an ad-hoc network, particularly, an MANET. The method includes: (a) determining whether to generate any one of first data and second data having a priority lower than the first data; (b) when predetermined data is generated in accordance with the determination, measuring a mode value related to the driving of a first node which currently possesses the predetermined generated data; and (c) processing, by the first node, the generated data by considering a content of the generated data and the measured mode value.


Patent
LIG Nex1 CO | Date: 2011-11-09

Provided are a signal processing apparatus and a method thereof that can convert amplitude sampling data outputted from an analog/digital converter into phase data and converts the phase data into amplitude data at high speed. The signal processing apparatus includes: an A/D (analog to digital) converter converting an inphase frequency signal and a quadrature frequency signal into amplitude sampling data including digital inphase data and digital quadrature data; a phase shifter including a phase shift lookup table that converts all amplitude sampling data outputtable from the A/D converter into phase values and approximates the phase values into first approximate integers, and thereafter, converts the first approximate integers into phase data of predetermined bits and stores the phase data, and converting the amplitude sampling data inputted from the A/D converter into the phase data by referring to the phase shift lookup table; a phase data memory storing the phase data outputted from the phase shifter; an amplitude converter including an amplitude conversion lookup table that converts all phase data outputtable from the phase shifter into amplitude values and approximates the amplitude values into second approximate integers, and converts the second approximate integers into amplitude data including digital inphase data and digital quadrature data and stores the amplitude data, and converting the phase data stored in the phase data memory into amplitude data by referring to the amplitude conversion lookup table; and a D/A converter converting the amplitude data outputted from the amplitude converter into an inphase frequency signal and a quadrature frequency signal.


Patent
LIG Nex1 Co. | Date: 2011-01-06

Provided are a signal restoring apparatus that can restore a reception signal of a counterpart terminal and increase frequency band efficiency by estimating its own transmission signal from a reception signal transmitted from a counterpart terminal through a satellite communication device and removing the estimated transmission signal, and a method thereof. The signal restoring apparatus according to the exemplary embodiment of the present invention includes: a transmitter transmitting a transmission signal to a satellite communication device; a band spread signal generator transmitting a band spread signal to the satellite communication device; a signal estimator estimating the transmission signal included in a reception signal transmitted from a counterpart terminal through the satellite communication device on the basis of the transmission signal and the band spread signal; and a signal remover removing the estimated transmission signal from the reception signal.


Provided are an apparatus and a method for extracting a target related to an algorithm separating the target and a background by using statistical characteristics of the target and the background among target extracting methods required in a weight value center tracking method, and recording media storing a program performing the method. According to the present invention, it is possible to effectively separate the target region and the background region from each other and it is possible to improve reliability in target extracting performance.


Patent
LIG Nex1 Co. | Date: 2010-11-11

Provided is a signal discriminating method of an electronic intelligence receiver. The method includes: detecting a start time and an end time of modulation on pulse (MOP) due to a direct path signal and a multi path signal from a received signal; and extracting at least one of signal strength, frequency, and phase by using in-phase component and quadrature component of the signal in a time from a start time of the signal to a start time of the MOP. As a result, the present invention can prevent faulty discrimination or no discrimination of a signal due to a multi path signal and an unintended MOP to extract signal parameters.


Patent
LIG Nex1 Co. | Date: 2010-11-11

Provided is a beam steering system of a phased array antenna using a frequency. The beam steering system according to the present invention includes: a plurality of transmitting/receiving front-ends including phase shifters for adjusting phases of inputted signals; a plurality of array antennas emitting signals outputted from the transmitting/receiving front-ends to free space; and a wideband transmitter generating the signals inputted into the transmitting/receiving front-ends, wherein the wideband transmitter generates the signals by varying frequencies of the signals in accordance with a control signal inputted from the outside. According to the exemplary embodiment of the present invention, by generating the signals by varying the frequencies of signals inputted into the phase shifters of transmitting/receiving front-ends, it is possible to generate a beam steering angle through a simple control without changing the phase of the phase shifter.


The present invention relates to an aperture antenna capable of controlling a shape of a radiated beam without changing a structure of an aperture antenna by connecting a beam controller with a single aperture antenna. The aperture antenna including a beam controller according to the present invention includes: a waveguide; an aperture horn of which one end is connected to the waveguide and the other end is provided with an opening; and a beam controller including a feeding unit connected to the opening and provided with a plurality of slits, a dielectric layer connected to the feeding unit, and a plurality of patches connected to the dielectric layer to control a beam shape of a signal introduced into the feeding unit and radiated through the patches.


Provided are a controlling apparatus for ejecting a guided missile and a method for ejecting the guided missile inserted into a launching tube. More particularly, The present invention provides a controlling apparatus for ejecting a guided missile additionally including a power supply controller which applies a signal for ejecting a guided weapon to a fuse during separating the fuse used for igniting a propulsion engine in the guided weapon and an ejection controlling method using the same.

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